Conan O'Brien ended his week-long stint in New York with a bang tonight: He officiated at the same-sex wedding of a staffer and aired the ceremony on his TBS talk show. Scott Cronick works as Conan's costume designer and he was accompanied down the aisle by Bravo's Andy Cohen before tying the knot with his partner, David Gorshein, under a chuppah that had been set up on the stage. Then it was up to Conan to make it official, as you can see in this clip from the show.